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Daksh Sheets and Plates is a well-respected manufacturer and supplier based in Delhi, India, specializing in ASME SA 387 Grade 91 Class 1 & 2 Sheets and Plates. We cater to industries that demand top-notch performance even in extreme pressure and temperature scenarios. The SA 387 Gr. 91 is a modified alloy steel containing 9% chromium, molybdenum, and vanadium, celebrated for its remarkable creep strength, thermal stability, and resistance to oxidation. Class 1 is known for its superior ductility, while Class 2 is recognized for its enhanced strength. These plates find extensive use in high-efficiency boilers, nuclear power plants, and pressure vessels that operate under high temperatures and long service cycles.
ASME SA 387 Grade 91 is made up of about 8.0–9.5% chromium, 0.85–1.05% molybdenum, 0.18–0.25% vanadium, along with trace amounts of carbon, manganese, silicon, phosphorus, sulfur, niobium, and nitrogen. This specific blend provides excellent creep resistance and structural integrity at temperatures exceeding 600°C. Class 1 plates typically boast a minimum yield strength of 275 MPa and a tensile strength ranging from 585 to 760 MPa, while Class 2 plates offer slightly higher strength. These plates undergo normalization and tempering, ensuring they have high thermal resistance, long-lasting durability, and reliable performance in high-pressure and high-temperature environments.
| Grade | ASME SA 387 GR.12 CL.1/2 Alloy Steel Plate |
|---|---|
| Width | 1000mm-4500mm |
| Thickness | 5mm-150mm |
| Length | 3000mm-18000mm |
| Supply Condition | As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement. |
| Impact tested | 52° C |
| Process of Manufacturing | Hot-Rolled (HR) |
| A387 GR.91 CL.1 & 2 | 0.06-0.15 max | 0.43 max | 0.25-0.66 max | 0.012 max | 0.16-0.27 max | 0.05 max | 0.18-0.56 max | 0.05-0.11 max | 7.90-9.60 max | 0.80-1.10 max | 0.025-0.080 max | 0.025 max |
| Grade | A387 GR.91 CL.1 &2 | |||
| A387 GR.91 CL.1 &2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 415 | 585-760 | 18 | |
| 50<t≦200 | – | – | – | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Daksh Sheets and Plates based in Hyderabad , India, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
ASME SA 387 Grade 91 Class 1 & Class 2 sheets and plates offer exceptional advantages for high-temperature and pressure applications. Their superior creep strength ensures reliability in demanding environments, while excellent corrosion resistance protects against oxidation and chemical attacks. These plates maintain structural integrity under extreme conditions, making them ideal for boilers, pressure vessels, and heat exchangers. High tensile and yield strengths enhance durability, reducing the need for frequent maintenance. Additionally, their precise composition provides excellent weldability and machinability, ensuring easy fabrication for complex industrial designs.
Yes, we offer custom sizes for ASME SA 387 Grade 91 Class 1 & 2 Sheet and Plates to meet specific project needs. Our team at Daksh Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@dakshsheetsandplates.co.in
ASME SA 387 Grade 91 Class 1 & 2 Sheets and Plates are mainly utilized in power generation boilers, steam piping systems, nuclear reactors, superheaters, and pressure vessels that face high thermal stress. Their impressive creep strength and thermal resistance make them perfect for ultra-supercritical (USC) power plants, petrochemical reactors, and high-efficiency turbines. Class 1 is typically chosen for components that need more ductility and flexibility in forming, while Class 2 is favored for applications that require greater strength.
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